Keying signal generator with false output immunity

H - Electricity – 04 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

350/71

H04N 9/44 (2006.01)

Patent

CA 1163360

RCA 75,347 Abstract A circuit for generating a composite keying signal comprises a gate pulse generating circuit and a voltage translating network in a television receiver also including keyed video signal processing circuits. The composite keying signal comprises a first pulse developed by the translating network during horizontal blanking intervals of the video signal, and a second pulse developed by the gate circuit during a portion of the horizontal blanking intervals and superimposed on the first pulse. An output of the gate circuit is clamped during picture intervals to a fixed voltage via a low impedance clamping path that exhibits current conduction capability greater than the output current conduction capability of the gate pulse generating circuit. The clamping action prevents improper keying of the keyed circuits in response to false keying signals such as may be generated in response to spurious signals occurring during picture intervals of the television signal.

384394

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Keying signal generator with false output immunity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keying signal generator with false output immunity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keying signal generator with false output immunity will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-328545

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.